'Declare a class that inherits from ToolStripControlHost.

Public Class ToolStripMonthCalendar
    Inherits ToolStripControlHost
    
    ' Call the base constructor passing in a MonthCalendar instance.
    Public Sub New() 
        MyBase.New(New MonthCalendar())
    
    End Sub

    Public ReadOnly Property MonthCalendarControl() As MonthCalendar 
        Get
            Return CType(Control, MonthCalendar)
        End Get
    End Property

    ' Expose the MonthCalendar.FirstDayOfWeek as a property.
    Public Property FirstDayOfWeek() As Day 
        Get
            Return MonthCalendarControl.FirstDayOfWeek
        End Get
        Set
            value = MonthCalendarControl.FirstDayOfWeek
        End Set
    End Property
     
    ' Expose the AddBoldedDate method.
    Public Sub AddBoldedDate(ByVal dateToBold As DateTime) 
        MonthCalendarControl.AddBoldedDate(dateToBold)
    
    End Sub

    ' Subscribe and unsubscribe the control events you wish to expose.
    Protected Overrides Sub OnSubscribeControlEvents(ByVal c As Control) 

        ' Call the base so the base events are connected.
        MyBase.OnSubscribeControlEvents(c)
        
        ' Cast the control to a MonthCalendar control.
        Dim monthCalendarControl As MonthCalendar = _
            CType(c, MonthCalendar)

        ' Add the event.
        AddHandler monthCalendarControl.DateChanged, _
            AddressOf HandleDateChanged
    
    End Sub

    Protected Overrides Sub OnUnsubscribeControlEvents(ByVal c As Control)
        ' Call the base method so the basic events are unsubscribed.
        MyBase.OnUnsubscribeControlEvents(c)

        ' Cast the control to a MonthCalendar control.
        Dim monthCalendarControl As MonthCalendar = _
            CType(c, MonthCalendar)

        ' Remove the event.
        RemoveHandler monthCalendarControl.DateChanged, _
            AddressOf HandleDateChanged

    End Sub

    ' Declare the DateChanged event.
    Public Event DateChanged As DateRangeEventHandler

    ' Raise the DateChanged event.
    Private Sub HandleDateChanged(ByVal sender As Object, _
        ByVal e As DateRangeEventArgs)

        RaiseEvent DateChanged(Me, e)
    End Sub
End Class

//Declare a class that inherits from ToolStripControlHost.
public class ToolStripMonthCalendar : ToolStripControlHost
{
    // Call the base constructor passing in a MonthCalendar instance.
    public ToolStripMonthCalendar() : base (new MonthCalendar()) { }

    public MonthCalendar MonthCalendarControl
    {
        get
        {
            return Control as MonthCalendar;
        }
    }

    // Expose the MonthCalendar.FirstDayOfWeek as a property.
    public Day FirstDayOfWeek
    {
        get
        {
            return MonthCalendarControl.FirstDayOfWeek;
        }
        set { value = MonthCalendarControl.FirstDayOfWeek; }
    }

    // Expose the AddBoldedDate method.
    public void AddBoldedDate(DateTime dateToBold)
    {
        MonthCalendarControl.AddBoldedDate(dateToBold);
    }

    // Subscribe and unsubscribe the control events you wish to expose.
    protected override void OnSubscribeControlEvents(Control c)
    {
        // Call the base so the base events are connected.
        base.OnSubscribeControlEvents(c);

        // Cast the control to a MonthCalendar control.
        MonthCalendar monthCalendarControl = (MonthCalendar) c;

        // Add the event.
        monthCalendarControl.DateChanged +=
            new DateRangeEventHandler(OnDateChanged);
    }

    protected override void OnUnsubscribeControlEvents(Control c)
    {
        // Call the base method so the basic events are unsubscribed.
        base.OnUnsubscribeControlEvents(c);

        // Cast the control to a MonthCalendar control.
        MonthCalendar monthCalendarControl = (MonthCalendar) c;

        // Remove the event.
        monthCalendarControl.DateChanged -=
            new DateRangeEventHandler(OnDateChanged);
    }

    // Declare the DateChanged event.
    public event DateRangeEventHandler DateChanged;

    // Raise the DateChanged event.
    private void OnDateChanged(object sender, DateRangeEventArgs e)
    {
        if (DateChanged != null)
        {
            DateChanged(this, e);
        }
    }
}